As a mass breeding modulo null nutrient medium of the Gmelina being attached trees and shrubs which

摘要

PROBLEM TO BE SOLVED: To propagate a tree belonging to genus Gmelina useful for a building material, etc., in a large amount for a short period of time by culturing a shoot apex of trees belonging to genus Gmelina, inducing and propagating a multibuds body having many (in)definite buds and regenerating a plant body under a specific condition. ;SOLUTION: A shoot apex of a tree belonging to genus Gmelina such as Gmelina arborea R_oxb is cultured, a multibuds body having many (in)definite buds is induced and propagated, and a large amount of shoot is produced from the multibuds body, then the shoot is transplanted into a rooting medium such as a B5 medium containing 0.002mg/L of indolebutyric acid (IBA) with non- adding of a growth-regulating substance of plants, or together with 0.01-0.3mg/V of benzine aluminopurine (BAP), thus rooted and a plant body is regenerated, then a tree belonging to genus Gmelina is propagated in a large amount. Preferably, a B5 medium containing 0.01-0.3mg/L BAP or 0.01-0.3mg/L BAP with 0.002mg/L IBA, or its modified medium is used as a medium producing the shoot.;COPYRIGHT: (C)1997,JPO